使用HAProxy+keepalived配合两台mycat搭建集群，实现高可用。HAProxy实现mycat多节点的集群高可用和负载均衡，而HAProxy通过keepalived实现高可用。

环境 - 图1

节点说明

名称 ip 软件
headquarters 192.168.1.60 mysql、mycat
master 192.168.1.61 mysql、mycat
node1 192.168.1.62 mysql、HAproxy、keepalived
node2 192.168.1.63 mysql、HAproxy、keepalived

版本说明

mysql-5.5.37-linux2.6-x86_64

Mycat-server-1.6.7.5-release-20200410174409-linux.tar.gz

keepalived-2.0.5.tar.gz